Functionality & MVP

1. User can enter an expense with category, price, description can be optional and date, and income.

2. User can create a new create category with an icon.

3. User can see daily and monthly report on the show pages, which include charts and summaries, category details.

4. User can customize their report, for example adding a new report of a category.

5. Bonus: provide an icon shop, every time when user enter an expense, user will receive a point, and they can use points to exchange for the category icon from the shop. "